140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger/* 21cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger * Copyright 2009 Google Inc. 340528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger * 41cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger * Use of this source code is governed by a BSD-style license that can be 51cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger * found in the LICENSE file. 640528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger */ 740528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 840528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger#ifndef SkHarfBuzzFont_DEFINED 940528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger#define SkHarfBuzzFont_DEFINED 1040528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 1140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenbergerextern "C" { 1240528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger#include "harfbuzz-shaper.h" 1340528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger//#include "harfbuzz-unicode.h" 1440528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger} 1540528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 1640528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger#include "SkTypes.h" 1740528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 1840528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenbergerclass SkPaint; 1940528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenbergerclass SkTypeface; 2040528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 2140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenbergerclass SkHarfBuzzFont { 2240528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenbergerpublic: 2340528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger /** The subclass returns the typeface for this font, or NULL 2440528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger */ 2540528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger virtual SkTypeface* getTypeface() const = 0; 2640528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger /** The subclass sets the text related attributes of the paint. 2740528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger e.g. textSize, typeface, textSkewX, etc. 2840528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger All of the attributes that could effect how the text is measured. 2940528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger Color information (e.g. color, xfermode, shader, etc.) are not required. 3040528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger */ 3140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger virtual void setupPaint(SkPaint*) const = 0; 3240528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 3340528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger /** Implementation of HB_GetFontTableFunc, using SkHarfBuzzFont* as 3440528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger the first parameter. 3540528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger */ 3640528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger static HB_Error GetFontTableFunc(void* skharfbuzzfont, const HB_Tag tag, 3740528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger HB_Byte* buffer, HB_UInt* len); 3840528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 3940528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger static const HB_FontClass& GetFontClass(); 4040528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger}; 4140528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger 4240528743dbb9ce7f39f093e0cdc47849ac8887cfDerek Sollenberger#endif 43